100 Glamour Red Bright and Shiny Metallic Exterior Padded Bubble Mailers Envelopes Self Sealing Bags 9x11.5 Usable Dimensions: 8 x 11.25. Color: Red, Paper Liner: White. Provides excellent protection during shipments. Aluminum Foil with Bubble Lining, Bubble Lining: 3/16. Approved by UPS, FedEx, and USPS.